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Finding the Fourth Proportional to 549,028.20, 822,851.10 and 486,820.20

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Solution

The fourth proportional to 549,028.20, 822,851.10 and 486,820.20 is: 729,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,028.20 : 822,851.10 = 486,820.20 : x
  2. Step 2: Convert to fraction form
    549,028.20/822,851.10 = 486,820.20/x
  3. Step 3: Cross multiply
    549,028.20x = 822,851.10 × 486,820.20
  4. Step 4: Simplify right side
    549,028.20x = 400,580,537,072.22
  5. Step 5: Solve for x
    x = 400,580,537,072.22/549,028.20
  6. Step 6: Final answer
    x = 729,617.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.